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Brazing furnace manufacturers to tell you brazing furnace processing and skills

Brazing furnace

1, before opening, to ensure that water, electricity, gas in the working state. Voltage at 380V, no 10% deviation. Pressure at 0.6Mpa, water pressure to the lowest value (0.5MPa). To meet the above requirements before they can power, to operate.


2, before discharge, check the equipment heating room, heating room must be clean, no debris, dust, oil, water and so on. In the inspection of the product, the same dry and clean, no water stains, oil, etc. in the discharge before the need to clean and clean.


3, after loading, the knob hit the "door off" position. Then, start the "mechanical pump" and "roughing valve". Vacuum units and furnace suction, while opening the vacuum gauge power supply (in general, the vacuum gauge power supply with the main power to start).


4, when the vacuum is higher than 1000Pa, the vacuum gauge monitoring point "J2" lit. This time, you can open the "Roots pump". If the conditions are not, "Roots pump" will not open, click the button no response.


5, when the vacuum is higher than 7Pa, the vacuum gauge monitoring point "J1" light. At this time, open the "front valve" and "diffusion pump". Preheat the "diffuser pump".


6, to be "diffusion pump" warm-up time to 90 minutes (can be observed on the touch screen counter), close the "roughing valve", open the "high valve", the furnace pumping high vacuum.


7, when the furnace vacuum to work vacuum (vacuum gauge monitoring point "J3" lit, pay attention to the initial monitoring point set higher, you can set or achieve the required vacuum, self-heating), open heating, While the temperature control table automatically start running (heating curve need to be prepared in advance)

8, heating, insulation After the end of the entire process, "process end" alarm, at the same time, heating automatically shut down.


9, if you choose natural cooling, so that equipment as usual, until the equipment naturally cooled to the baked temperature, close the "high valve", "diffusion pump", "Roots pump", leaving only "mechanical pump" and " The "diffuser pump" is evacuated and cooled. At the same time you can put the knob to the "door open" position. When closing the "vacuum gauge", open the "manual bleed valve", to deflate, to the furnace pressure and atmospheric pressure balance, the door automatically open, you can take the material at the same time tighten the "manual release valve." To "cool the pump" temperature to room temperature (about one hour), you can turn off the "mechanical pump" and "front valve." Close water, electricity, gas. Complete the entire process.


10, such as the choice of strong cooling and cooling, after the eighth step, turn off the "vacuum gauge", "high valve", "rough pumping valve", "diffusion pump", leaving only "mechanical pump" and " The diffusion pump is evacuated and cooled. After opening the "inflatable valve", fill the furnace with nitrogen or argon until the atmosphere is basically balanced (with the pressure gauge to control the fan start detection point and the inflation upper limit detection point), open the strong chillers until cooled to the baked temperature Cold process is the automatic control of gas). Close the "inflatable valve". After cooling to the baked temperature, turn the knob to the "door open" position. And then unscrew the "manual vent valve" inflated to balance with the atmosphere, the door automatically open, and then tighten the "manual release valve." And then take the material. Close water, electricity, gas. Complete the entire process.

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